Terric Humisol (T.H)
Common horizon sequence: Om or Oh, Oh, C, Oh
Soils of this subgroup have the general properties specified for the Organic order and the Humisol great group. They differ from Typic Humisols by having a terric layer (an unconsolidated mineral layer at least 30 cm thick) beneath the surface tier. They may also have cumulic or limnic layers but do not have fibric, mesic or hydric layers within the control section.
Note: Diagnostic horizons are underlined.